AT&T updates the Samsung Galaxy S5 Active and Samsung Galaxy Alpha to Android 5.0
The update carries with it the new Material Design, Lock Screen notifications and the 64-bit ART compiler which should help apps open faster. Also included with Android 5.0.2 is Project Volta for enhanced battery life, the new "Recent Apps" menu, the ability to scroll down Quick Settings from any page, and more.
Because the updates are being sent out OTA, you might not receive it today, tomorrow, or even the next day. Be patient and before you know it, you will see the notification for the update appear on your screen.